公开(公告)号：US20150015563A1

公开(公告)日：2015-01-15

申请号：US14256411

申请日：2014-04-18

Applicant: Samsung Display Co., Ltd.

Inventor： Kaplan LEONID ,  Heung-Yeol NA ,  Baek-Woon LEE ,  Won-Sik HYUN ,  Jae-Hoon LEE

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/2029 ,  G09G3/2033 ,  G09G2300/0809 ,  G09G2320/0233

Abstract: A pixel circuit includes: an organic light emitting diode (“OLED”); a threshold circuit which generates an output signal based on an input signal, where the threshold circuit has a hysteresis characteristic with respect to the input signal; a first transistor including a first electrode connected to a data line, a second electrode connected to an input terminal of the threshold circuit, and a gate electrode connected to a scan line; and a second transistor including a first electrode connected to a first power, a second electrode connected to an anode of the organic light emitting diode, and a gate electrode connected to an output terminal of the threshold circuit, where the second transistor controls a current amount that flows to the organic light emitting diode from the first power based on the output signal of the threshold circuit.

Abstract translation: 像素电路包括：有机发光二极管（“OLED”）; 阈值电路，其基于输入信号生成输出信号，其中所述阈值电路相对于所述输入信号具有滞后特性; 第一晶体管，包括连接到数据线的第一电极，连接到阈值电路的输入端的第二电极和连接到扫描线的栅电极; 以及第二晶体管，包括连接到第一电源的第一电极，连接到有机发光二极管的阳极的第二电极和连接到阈值电路的输出端的栅电极，其中第二晶体管控制电流量 其基于阈值电路的输出信号从第一功率流向有机发光二极管。